Hydrotherapeutic apparatus



FIG. 1 is a perspective view of a hydrotherapeutic apparatus showing my new design;

FIG. 2 is a front elevational view, on a reduced scale, thereof;

FIG. 3 is a top plan view, on a reduced scale, thereof; and

FIG. 4 is a side elevational view, on a reduced scale, thereof. 

The ornamental design for a hydrotherapeutic apparatus, as shown and described. 